A light-hearted and informative reminder of all the things that we learnt in school but have since become relegated to the backs of our minds, I Used to Know That features hundreds of important snippets of wisdom, facts, theories, equations, phrases, rules and sayings. A practical guide to turn to when an answer is eluding you, when helping a child with homework or preparing them for the new school year, or maybe just to brush up on trivia for the pub quiz. I Used to Know That covers English Language and Literature, Mathematics, Biology, Chemistry, Physics, History, Geography and General Studies, so never again will you find yourself stumped!

    

    Beginning millions of years ago with ancient “ant odometers” and moving through time to our modern-day quest for new dimensions, it covers 250 milestones in mathematical history. Among the numerous delights readers will learn about as they dip into this inviting anthology: cicada-generated prime numbers, magic squares from centuries ago, the discovery of pi and calculus, and the butterfly effect. Each topic gets a lavishly illustrated spread with stunning color art, along with formulas and concepts, fascinating facts about scientists’ lives, and real-world applications of the theorems.

    You multiply something by something, right? Or you're scratching your head, wondering how to compute the odds that your football team will take next Sunday's game. You're pretty sure that involved ratios. The problem is, you can't quite remember.Here you get an adult refresher and real-life context—with examples ranging from how to figure out how many shingles it takes to re-roof the garage to the formula for resizing Mom's tomato sauce recipe for your entire family.Forget higher calculus—you just need an open mind. And with this practical guide, math can stop being scary and start being useful.

    As he did so masterfully in Prime Obsession, Derbyshire brings the evolution of mathematical thinking to dramatic life by focusing on the key historical players. Unknown Quantity begins in the time of Abraham and Isaac and moves from Abel's proof to the higher levels of abstraction developed by Galois through modern-day advances. Derbyshire explains how a simple turn of thought from this plus this equals this to this plus what equals this? gave birth to a whole new way of perceiving the world. With a historian's narrative authority and a beloved teacher's clarity and passion, Derbyshire leads readers on an intellectually satisfying and pleasantly challenging historical and mathematical journey.

    But, Alex Bellos says, "math can be inspiring and brilliantly creative. Mathematical thought is one of the great achievements of the human race, and arguably the foundation of all human progress. The world of mathematics is a remarkable place."Bellos has traveled all around the globe and has plunged into history to uncover fascinating stories of mathematical achievement, from the breakthroughs of Euclid, the greatest mathematician of all time, to the creations of the Zen master of origami, one of the hottest areas of mathematical work today. Taking us into the wilds of the Amazon, he tells the story of a tribe there who can count only to five and reports on the latest findings about the math instinct--including the revelation that ants can actually count how many steps they've taken. Journeying to the Bay of Bengal, he interviews a Hindu sage about the brilliant mathematical insights of the Buddha, while in Japan he visits the godfather of Sudoku and introduces the brainteasing delights of mathematical games.Exploring the mysteries of randomness, he explains why it is impossible for our iPods to truly randomly select songs. In probing the many intrigues of that most beloved of numbers, pi, he visits with two brothers so obsessed with the elusive number that they built a supercomputer in their Manhattan apartment to study it. Throughout, the journey is enhanced with a wealth of intriguing illustrations, such as of the clever puzzles known as tangrams and the crochet creation of an American math professor who suddenly realized one day that she could knit a representation of higher dimensional space that no one had been able to visualize. Whether writing about how algebra solved Swedish traffic problems, visiting the Mental Calculation World Cup to disclose the secrets of lightning calculation, or exploring the links between pineapples and beautiful teeth, Bellos is a wonderfully engaging guide who never fails to delight even as he edifies. "Here's Looking at Euclid "is a rare gem that brings the beauty of math to life.

    In the new business era of the twenty first century, great brands and products must evoke a dynamic personality in order to attract passionate customers. Although many organizations hide their personality behind layers of packaged messaging and advertising, social media guru and influencer Rohit Bhargava counters that philosophy and illustrates how successful businesses have redefined themselves in the new customer universe.Personality Not Included is a powerhouse resource packed with bold new insights that show you how to shed the lifeless armor of your business and rediscover the soul of your brand. Sharing stories from the ethos of the world's weirdest city, to how Manga has taken the comic book industry by storm, to showcasing brands like Intel, Boeing, ING, and Dyson, Bhargava shows you why personality matters from the inside out.In Part One, you'll be introduced to the key components to building a personality and learn how to:Recognize the greatest myth that most marketers blindly follow, and how to get past it Use the "UAT Filter" to understand the personality of your organization and products in order to develop a communication strategy that drives your marketing Create your company's "marketing backstory" using techniques pioneered by Hollywood screenwriters Harness the influence of "accidental spokespeople" and use it to your advantage Navigate the roadblocks of using personality that come from bosses, peers, investors, and lawyers, without getting fired or flamed Pinpoint and capitalize on the moments where personality can make a difference Part Two is packed with guides, tools, and techniques to help you flawlessly implement your plan. It features practical, step-by-step lessons that help you effectively move from theory to action, and includes a valuable collection of guides, checklists, question forms, printable resources, and more.Don't be another faceless company-learn the new rules for succeeding in the social media era with Personality Not Included.

    Now William Dunham gives them the attention they deserve.Dunham places each theorem within its historical context and explores the very human and often turbulent life of the creator — from Archimedes, the absentminded theoretician whose absorption in his work often precluded eating or bathing, to Gerolamo Cardano, the sixteenth-century mathematician whose accomplishments flourished despite a bizarre array of misadventures, to the paranoid genius of modern times, Georg Cantor. He also provides step-by-step proofs for the theorems, each easily accessible to readers with no more than a knowledge of high school mathematics.A rare combination of the historical, biographical, and mathematical, Journey Through Genius is a fascinating introduction to a neglected field of human creativity.

    But if Ericka can help it, her stepmother won't have control for very long.

    The Bells, a crime family in New York, have the cocaine market on lock. The Simmons, hailing from the South, reign supreme in heroin. Talks of joining forces are suddenly stalled when family patriarch Guy Simmons is gunned down. Suspicions fly. Jealousy breeds. The body count rises. Guy Simmons has created a legacy he wants to pass on to his two sons, Kevin and Tyquan. However, his womanizing ways have spilled over and jeopardizes all he's worked for. The mothers of his sons hate each other. Like mother, like son. Guy s shooting has ignited a new brotherly beef; a beef that could have deadly repercussions, especially when you have a family where the enemy may lie within.

    Imagine that you face three doors, behind one of which is a prize. You choose one but do not open it. The host--call him Monty Hall--opens a different door, alwayschoosing one he knows to be empty. Left with two doors, will you do better by sticking with your first choice, or by switching to the other remaining door? In this light-hearted yet ultimately serious book, Jason Rosenhouse explores the history of this fascinating puzzle. Using a minimum ofmathematics (and none at all for much of the book), he shows how the problem has fascinated philosophers, psychologists, and many others, and examines the many variations that have appeared over the years. As Rosenhouse demonstrates, the Monty Hall Problem illuminates fundamental mathematical issuesand has abiding philosophical implications. Perhaps most important, he writes, the problem opens a window on our cognitive difficulties in reasoning about uncertainty.

    Amaryllis Price, once a relationship destroyer and professional husband stealer has turned her life around. Now that she's made a vow to live right and walk the straight and narrow, Amaryllis finds herself at a crossroads when her past catches up with her. Charles Walker, a man Amaryllis could never resist, appears, and he's even sexier than Amaryllis remembered. Will she remain celibate and resist the wiles of the devil?Bridgette Nelson, Amaryllis's best friend and roommate, is next in line for a promotion. But when she unleashes a harsh tongue against her boss's nephew, Bridgette is forced to change her vocabulary or lose the very thing that she worked so hard to get.

    Two feuding cities. One woman. One was born in our nations capital, Washington DC. The other is a native of Murder City, Baltimore. Despising the other's city made them rivalries before even meeting. It didn't matter that they both grew up on violent streets surrounded by drugs and poverty. Soon, need arises and they're forced to cross each other's paths. But when they do, hate from generations before them rises and their meeting becomes intense.Many years later... an opportunity presents itself for them to put their dislikes aside to make millions. They agree, and quickly become the richest men on the east coast. One has a quick temper... the other has quick wit and this combination makes them unstoppable. There alliance unites soldiers from both DC and Baltimore as they solidify their empire.Defying all enemies, their bond tightens and they become the best of friends. But what happens when a woman becomes involved whose beauty is so intoxicating, that to get another woman like her would be impossible? War. The Face That Launched a Thousand Bullets is a classic love story. The love of money. The love of power. The love of a woman.

    Dr. Euler's Fabulous Formula shares the fascinating story of this groundbreaking formula--long regarded as the gold standard for mathematical beauty--and shows why it still lies at the heart of complex number theory. This book is the sequel to Paul Nahin's An Imaginary Tale: The Story of I [the square root of -1], which chronicled the events leading up to the discovery of one of mathematics' most elusive numbers, the square root of minus one. Unlike the earlier book, which devoted a significant amount of space to the historical development of complex numbers, Dr. Euler begins with discussions of many sophisticated applications of complex numbers in pure and applied mathematics, and to electronic technology. The topics covered span a huge range, from a never-before-told tale of an encounter between the famous mathematician G. H. Hardy and the physicist Arthur Schuster, to a discussion of the theoretical basis for single-sideband AM radio, to the design of chase-and-escape problems. The book is accessible to any reader with the equivalent of the first two years of college mathematics (calculus and differential equations), and it promises to inspire new applications for years to come. Or as Nahin writes in the book's preface: To mathematicians ten thousand years hence, Euler's formula will still be beautiful and stunning and untarnished by time.

    Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number tricks. This book will teach you to do math in your head faster than you ever thought possible, dramatically improve your memory for numbers, and—maybe for the first time—make mathematics fun.Yes, even you can learn to do seemingly complex equations in your head; all you need to learn are a few tricks. You’ll be able to quickly multiply and divide triple digits, compute with fractions, and determine squares, cubes, and roots without blinking an eye. No matter what your age or current math ability, Secrets of Mental Math will allow you to perform fantastic feats of the mind effortlessly. This is the math they never taught you in school.Also available as an eBook